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http://dx.doi.org/10.5139/JKSAS.2017.45.11.989

Opening Characteristics of a Main Oxidizer Shut-off Valve  

Hong, Moongeun (Launcher Propulsion Control Team, Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.45, no.11, 2017 , pp. 989-997 More about this Journal
Abstract
We study opening transient responses of a self-sustainable poppet valve, which is usually used for the main oxidizer shut-off valve of liquid rocket engines. In order to perform numerical analysis, a pneumatic supply system was simulated as an orifice with a diameter of 3.2 mm and the equations of motion of valve moving part were derived. For the validation of the study, a comparison of numerical predictions and experimental results has been done. As one of the practical applications of this study, the employment of an orifice in a high pneumatic pressure has been presented to control the valve opening time.
Keywords
Main Oxidizer Shut-off Valve; Transient Response; Equation of Motion; Liquid Rocket Engine;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Jeon, J., Hong, M., Kim, H. and Lee, S. Y., "A Study on the Force Balance of Main Oxidizer Shutoff Valve,"Journal of the Korean Society of Aeronautical and Space Sciences, Vol. 37, No. 8, 2009, pp. 812-818.   DOI
2 Kim, D., Kim, E., Kim, S., Park, S., Hong, M. and Lee, S. Y., "A Study on the Pneumatic Part Coatings Characteristics of a Main Oxidizer Shut-off Valve for Liquid Rocket Engines,"Proceeding of The Society for Aerospace System Engineering Spring Conference, May 2013.
3 Kim, D., Hong, M., Park, J. and Lee, S. Y., "Study for the Development of a Main Oxidizer Shut-off Valve for Liquid Rocket Engines,"Journal of the Korean Society of Propulsion Engineers, Vol. 17, No. 6, 2013, pp. 113-119.   DOI
4 Hong, M., "Improvement of a Flow Coefficient for the Recirculation Flow in a Main Oxidizer Shut-off Valve,"Proceeding of The Korean Society of Propulsion Engineers Fall Conference, December 2016.
5 Lee, H. and Hong, M., "On the Valve Travel of a Main Oxidizer Shut-off Valve," Proceeding of the 5th International Symposium on Fluid Machinery and Fluids Engineering, October 2012.
6 John, J. E. A., Gas dynamics, 2nd edition, Prentice-Hall, 1984. pp. 42-55.
7 Hong, M. "Acceptance Test of Main Oxidizer Shut-off Valve DM03-03 for a 75-tonf Liquid Rocket Engine," KARI-IDMS, L2-TR-00442, 2017.
8 Hong, M. "Acceptance Test of Main Oxidizer Shut-off Valve DM05-03 for a 75-tonf Liquid Rocket Engine," KARI-IDMS, L2-TR-00904, 2016.